I'm playing devils advocate here. Partially because it bafftles me and partially because I don't know the answer.
And especially because I'm curious and just want to know what people think!
We all know a bride cannot kick out a bridesmaid unless she attempts murder or tries to sleep with FI. And if she does, for any reason other than these, the bride is ending the friendship and basically being a crazy bridezilla.
But what about a bridesmaid who wants to step down? Other than being pregnant or financially unstable, why do we give less crap to the BM that is considering backing out. Isn't it an equally terrible offense that would end a friendship as well?